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7:00 PM
@orlp If you have a bound on convergence, you could know how many iterations you need to guarantee success to two decimal places
in the worst case
algorithms that do a variable number of iterations until they get close enough are fine with monotonic convergence though
but, imagining a python algorithm, it would likely save chars to just iterate a fixed number of times
 
@xnor well, you can determine that
@xnor number of ulps in doubles :)
 
ulps?
 
@xnor smallest possible change representable in a double
since the convergence is monotonic, it provides an upper bound on the number of iterations needed
 
ah, i see
but likely there's a much weaker upper bound coming from arithmetic properties of the algorithm
i guess it won't matter much though except to shorter, say, 9**99 to 9**9
 
@xnor honestly, a handful will be enough - in my experience it converges pretty fast
@xnor if you're feeling particularly adventurous, try proving a rate yourself :)
 
7:20 PM
โ†‘ If anyone wants to start using it, everything's been sorted out :)
 
@BetaDecay Fixed your italics. You were using SE markdown, i.e. _, rather than wiki markdown, which uses ''.
 
7:46 PM
@AlexA. Oh haha, that was because I copied it straight from codeplex
Thanks anyway :D
 
Did you just start this language?
 
@BetaDecay If you call it Fourier, I want to see a Fourier transform as a code example. :)
3
 
Just yesterday @flawr
 
Why not FourierFuck?
 
@RetoKoradi Haha I'll leave that to you ;)
@flawr Sounds like Furrier fuck
 
7:48 PM
YIFF
 
@flawr YIFF = Yes I'm Fucking Fourier?
 
Haha, why not^^
 
I just recently had an idea for a feature for a golfing languag.e
 
@AlexA. The poor guy died in 1830.
 
7:50 PM
Where you basically have different 'modes'
 
@flawr Read the mind of every PPCG user and preemtively create a built-in for each challenge?
 
And you can switch between those
(@AlexA. yes almost=)
So one mode is for using matrices/math stuf
one mode for strings/regex
 
@flawr I believe I heard this suggested before. I think it might have been Martin who brought it up as an idea for CJam.
 
one mode for parsing etc
Ah ok, well I do not understand CJam at all
 
@flawr Same here, buddy.
 
7:52 PM
I'm fairly certain no one understands cjam
 
Not even @aditsu
 
Well no one understands perl too.
 
Infinite monkeys with infinite typewriters will eventually beat your Pyth bytecount
 
For example, it has two letter codes starting with m for math operations. I think one suggestion was to have a mode switch where you would turn them into one letter operations.
 
An another idea I had (perhpas not very useful) was a language based on solutions of unsolved problems.
 
7:54 PM
The next step would be to have variations of the language that start in different modes.
 
@RetoKoradi yeah exactly=)
 
@RetoKoradi His spirit lives on in every transform.
 
yo you can turn off sound in SE chatrooms?! now i can play osu on the other monitor without stressing about someone pinging me
 
There was sound in SE chatrooms?!
 
on the top right ther is an icon
next to the orange buttons
 
7:56 PM
@BetaDecay Have you never heard a ping?
 
@AlexA. Nope haha
 
Are your speakers off?
 
Ohh that's why you call it pinging
:D
@AlexA. Not usually
 
Crank your volume. All the way up. Just for a sec. Let me know once you've done it.
 
I normally have the sound on my computer turned off. But the ping scares the hell out of me when I turn on the sound for something, and forget to turn it off again.
4
 
7:57 PM
Haha=)
 
@RetoKoradi Haha yeah, I always have my sound on but it startles me anyway.
 
DAE think the challenges in the last few months haven't been as entertaining as in the year before?
 
Turned off now. Thanks for the pointer, I had never noticed the icon.
 
Even the doorbell startles me, even when I can hear someone approaching the front door and I know they're going to ring the bell.
 
Sometimes I would ask a question and then close the tab, coming back in a few minutes to look for answers
 
7:59 PM
Oh, and the telephone, as well as my alarm clocks.
 
Woah - we have three rows of avatars in the avatar bar
 
@AlexA. did this startle you?
 
Bloody hell. Let's try and get everyone to say hello :D
 
@trichoplax only for you
 
it startled me and i didn't even hear it
 
7:59 PM
@trichoplax Make your browserwindow smaller=P
 
@Optimizer No, not this time.
 
@AlexA. now?
 
@Optimizer Yeah not on your super resolution screen I know
 
@AlexA. what about now?
 
@Optimizer Haha nope. Usually when I'm focused on something else.
 
8:00 PM
@trichoplax super? its just 900p
@AlexA. now?
 
P = petapixel?
 
@Optimizer That's super for me - I have 766...
 
@trichoplax Time to start chat banning random people. There can be at most two rows.
 
yo guys, check out how many rows of avatars there are i.imgur.com/UjCqWh5.png
3
 
haha
 
8:01 PM
7 ?
I am not sure. Its really a tricky question
 
Looks like Windows 7 to me. Get a better OS, @undergroundmonorail.
 
@undergroundmonorail Looks like a PPCG infographic :)
 
Get Windows 1 @undergroundmonorail
 
I upgraded to Windows 10 and now my autohidden task bar keeps unhiding and getting stuck :(
 
@trichoplax "upgraded"
 
8:03 PM
Which is a problem on my tiny screen...
 
i recognize that win7 is starting be be considered "old" but it works with everything i need it to work with and i'm too lazy to figure out how to [LEGALLY PURCHASE FOR REAL MONEY LIKE AN ADULT WHO DOESN'T TORRENT HIS OS] anything better
 
@AlexA. yes I almost added those quotes myself ;)
 
@undergroundmonorail Windows 7 is heads and tails better than Windows 8. Never used 10.
 
@undergroundmonorail You can torrent an OS? Wow :D
 
@undergroundmonorail If you have windows 7 you can automatically get windows 10 free. You may want to look at windows 10 on someone else's machine before making that step though...
 
8:04 PM
@undergroundmonorail You know, there are free operating systems which require neither real money nor torrenting...
 
@AlexA. i've heard that, but i've also heard "install 'classic shell' and then it behaves just like win7 but is optimized better"
I use linux on my laptop but I play too many video games to commit to that here
 
What kind of games?
 
@undergroundmonorail I have a Mac with a Windows VM for games. You know what makes games run slowly? A VM.
 
@trichoplax I will look into this, as someone who [LEGALLY PURCHASED FOR REAL MONEY LIKE AN ADULT WHO DOESN'T TORRENT HIS OS] win7...
 
@flawr Good ones
 
8:05 PM
@flawr recently it's mostly just been osu, rocket league and dolphin for melee
 
Never heard of those
 
Me neither
 
@AlexA. now?
 
@undergroundmonorail I'm surprised you haven't had boxes pop up and hassle you about it - if you have windows update running then it should be aggressively pushing windows 10 already (which I also didn't like...)
 
@Optimizer I'm focused on chat. If I were focused on something else with chat in the background, maybe.
 
8:06 PM
@Optimizer When that finally works it's going to be so worth it
 
osu is a pretty good rhythm game but it requires a tablet to be fun imo, rocket league is soccer except played with rocket powered cars and it's dope as hell, dolphin is a gamecube/wii emulator that i use to play super smash brothers melee online
 
@trichoplax Haha
@undergroundmonorail In my mind, OSU is Oregon State University.
 
there is a subreddit for oregon state university that occaisonally gets posts about the rhythm game
 
Haha
I bet that pisses off an alum or two.
 
8:09 PM
@undergroundmonorail Rocket Leag reminds me of this: youtube.com/watch?v=Zxe_DqAkeAk
 
this is osu
@flawr funnily enough, that's what it looks like whenever i try to do anything impressive in rocket league
 
You know, Steam has Linux-native games. It even has Half-Life 1 (and maybe 2), which is really all you need.
 
it doesn't have osu or rocket league though
 
New challenge idea: Write a program which finds politicians in the Ashley Madison leaked database ;)
 
there is dolphin but idk how good it is ¯\_(ใƒ„)_/¯
 
8:11 PM
@flawr What is it with you and exploding vehicles?
 
@AlexA. The car did not explode?
 
Okay, horribly crashing vehicles.
 
You seem to imply that I've posted things like this before??
 
The plane
 
Ah
=)
I've been to an airshow this weekend
two planes crashed
 
8:13 PM
D:
 
Was everyone okay?
 
One pilot died, the other was able to escape with his parachute system (that parachutes the whole plane, it was an ultralight)
 
:(
 
8:15 PM
@flawr what's with you being on an air field and planes crashing all over?
you should stop going
 
And when looking at some images online I found out that there was another horrible plane crash near sussex.
@Optimizer I cannot be on two airshows simultaneously.
 
Apparently the pilot survived there, but it killed 7 car drivers.
Because it 'landed' on a street.
 
@flawr thank god you cannot be!!
 
It sounds like you need a hobby other than researching horrific plane crashes.
 
8:16 PM
And it was such a beautiful plane=/
 
This year seems to be the year for planes crashing into cars :P
(in the UK at least)
 
is it possible that flawr is a subconscious reality bender, accidentally causing horrific plane crashes?
 
A hunter, two seater, where the seats where ntext to eachother.
 
Haha "A bunch of people died. Too bad though, it was a beautiful plane." :P
 
hahaha
 
Oh well, there is an even better footage.
 
"better"
 
Seemed relevant ^
 
8:18 PM
Oh and totally unrelated to this: I recently found a great subreddit:
 
he's having so much fun.
 
i can't find the xkcd i'm looking for D:
 
@undergroundmonorail @MartinBüttner, you are needed ^
 
which one?
 
8:19 PM
stop it you guys! People died.
 
People die all the time.
 
What if I said it was a llama flying the plane?
 
something about megan realizing she always secretly roots for disasters and black hat is like "yeah that's normal, it's the only reason anyone watches the space shuttle launch" and i forget what the punchline is
 
Okay, the real reason I need all of you to stop is that there is a f*cking army runway right next to my home and jets take off and land all the time!
 
8:21 PM
 
"Have you a moment to talk about our mighty lord llama?"
 
"He peers in your windows while you're asleep."
 
oh i found it
the alt text of this is how i imagine @flawr xkcd.com/611
 
should I record each and every jet take off/landing?
 
@AlexA. I read that as he pees in your windows
 
8:23 PM
well, Alex poops there already!
 
@Optimizer Perhaps this doesn't provide all that much reassurance, but military pilots are typically selected as the best. It seems the horrific crashes that are mentioned are amateur pilots. So I think you're safer next to a military runway than a public one.
 
Well but the military plane crashes are way more spectacular!
 
"spectacular"
 
we could try to get flawr to stop talking about plane crashes but it might be easier to get optimizer to move
 
If this is making Optimizer uncomfortable we should really talk about something else.
 
8:25 PM
I am sorry, now I really have to live up to the reputation I just managed to get=)
 
go to another air show tomorrow
where ever its happening
 
Any airshows near you Optimizer?
 
no
 
Hahahahaha
 
8:26 PM
The llama guides the planes to safety.
 
you edited?
 
No
 
wow, people are obsessed
 
The world is obsessed
 
You know llamas are just so darn creepy beasts.
 
8:27 PM
Noooo
 
You feel like they are constantly judging you.
 
Baby Optimizer ^
 
they are at least less creepier than a "Disaster Voyeurist"
 
"Fuck everyone I am gonna suck the souls out of your godd**** motherf****s"
 
Lol you forgot a censor
 
8:29 PM
goddamn is a curse word?
 
It can't be "goddamn" because there are too many asterisks.
 
one time i took a picture of a pokemon plush toy i have with the intention of photoshopping him so he would have a happy open mouth and while i was doing it i thought "i bet it would be cute if i gave him little sharp teeth" but then i did that and it was very scary so i deleted the picture
 
yeah...
 
@undergroundmonorail Cool story, bro.
 
when i started typing that we were talking about creepy looking animals so it was at least a little bit relevant
 
8:30 PM
As it turns out, baby llamas are ridiculously adorable.
 
Baby blind worms are too!!
 
I gotta say, I was expecting something much grosser. That's not bad.
 
Robins are cute too
 
Even baby spiders can be cute:
 
Or not :P
 
8:38 PM
@TheNumberOne Please, PLEASE delete this
omg
 
Arachnophobia?
 
Oh, thank you. Mild arachnophobia.
 
Oh we should do a '-phobia' challenge!
 
Triskaidekaphobia, the fear of Triscuits.
 
I do not have anything concrete in mind but I just thought it would be neat to incorporate all those '-phobia' words in a challegne0)
"Rhabdophobia- Fear of being severely punished or beaten by a rod, or of being severely criticized. Also fear of magic.(wand)"
 
8:41 PM
@AlexA. I stepped on one of those (the spider I showed you) once. I very quickly had baby spiders all over me.
 
@TheNumberOne Oh god no ahh
 
Did anyone used to play Halo CE (the first halo)?
 
Yes
 
There was a map called Gephyrophobia!
Too bad they shut down the game-spy servers =/
 
Who linked me to xkcd?? I was trapped pressing random for ages and only escaped because I randomly hit 5f375a86
 
8:44 PM
Haha
 
 
(Btw, "triskaidekaphobia" is actually a fear of the number 13. It has nothing to do with snack foods.)
 
:23621020 Aw no I missed it :P :)
 
For snack foods you want this:
Alektorophobia is a specific phobia, the fear of chickens and other fowls such as roosters. Alektorophobia may also include eggs and dead chickens (although typically does not include cooked chickens). Suggested rationales for this fear include a general fear of birds, past trauma related to an attack or aggressive behavior by chickens, and feelings triggered by the daily habits and behaviors of chickens. == Prevalence == Both genetic and environmental factors are often responsible for the presence of a phobia. Some phobias have been associated with a fearful first encounter with the phobic object...
 
@BetaDecay Linky
 
8:46 PM
(@trichoplax Did you just revert back to your turtley form?)
 
@AlexA. Yes! In between posting my previous two posts, which caused a glitch and totally confused me
 
@TheNumberOne Haha spiders are just nasty ;)
 
Turtleplax
 
lol
 
@trichoplax Keep it, it looks really nice :)
 
8:50 PM
Yay
 
@BetaDecay Thanks! It also has sentimental value as my first avatar and being from my first PPCG answer :)
 
He's rejoined the AAP!
 
Yay, welcome back.
 
You'd best not defect to the FAP.
 
8:52 PM
Does fap mean what I think it does?
 
American Academy of Pediatrics?
 
Does BrainSteel count as both fractal and animal?
 
Fractal Avatar Party.
 
@BrainSteel Oh! You turned up just as I was typing about you...
 
@trichoplax Well, you can always just let the F stand for Fibonacci :D
 
8:54 PM
or Fourier
 
Ohhhh definitely not what I was thinking of ;)
 
Good to see so many non-identicon avatars - much easier to see who's who
 
Are you guys FAPping already?
 
@BrainSteel is part of the AAP.
 
I kind of want to see a @trichoplax-style mandelbrot set-shaped turtle now.
 
8:56 PM
We should define common boundary conditions for our avatars so that the avatar bar in chat always connects with no visible joins
 
I remember xnor connecting with someone once
 
I remember that vaguely but I can't remember the other avatar
 
they were totally touching each other
 
eeeeek
 
I think I still have the full face Geobits
 
8:57 PM
Avert ye eyes!
 
Does @TheNumberOne also count as AAP member?
 
@BetaDecay I thought Geobits was only ever half a face??
 
Well, he's not part of FAP.
 
@trichoplax Someone flipped his avatar and we got to see his whole face
 
I thought Geobits was obviously a triangle.
 
8:58 PM
Nope, I don't have it
 
@BetaDecay lol I missed that
 
@flawr A as for abstract or A as for animal
 
Anyone wanna crawl the transcript for around Christmastime 2014? ;)
 
Do you remember a keyword?
 
@TheNumberOne A for Animal, but your avatar certainly is some species of snakes??
 
9:00 PM
My avatar represents a snake and also the abstract concept of one :)
 
One Snake?
 
One Llama
 
@flawr And that :)
I just learned that a Beta as in a Beta fish is actually spelled Betta
 
One Direction
 
Is it a Betta fish than the rest of them?
 
9:03 PM
Got it! :D
Nov 6 '14 at 18:09, by hosch250
user image
 
So who's that?
 
Fedorabits
 
That's a weird shaped hat
 
Why the hell am I researching historical hats now.
 
Spanish conquistador hat
 
9:17 PM
I'm pretty sure Geobits' hat isn't really that shape lol
 
 
I don't know, it's really satisfying to imagine Geobits in a spanish conquistador hat clicking lots of downvote buttons.
8
 
@BetaDecay For safetywear, those are awfully sharp points.
 
Spanish Inquisition hat.
 
@AlexA. how about now?
 
9:22 PM
@trichoplax You use them like a Rhino
 
That sounds horrendous
 
@trichoplax How about now what? I stepped away for a bit and missed something. All of a sudden hats everywhere.
It's like I'm playing TF2.
 
@AlexA. Ah - you missed the ping then :P
 
Haha @Geobits are you staying silent or just not here?
 
@trichoplax Which ping did I miss? I'm lost.
 
9:25 PM
@AlexA. I was just repeating Optimiser's attempt at making you jump...
 
Haha good try, but not yet. I'm not distracted enough yet.
 
9:53 PM
0
Q: Fibonacci in +!()[]{}script

orlpWrite a piece of Javascript code that calls alert with an array containing the first 50 Fibonacci numbers in order. You may only use the following characters: +!()[]{}. As a reference, your code must be functionally equal to the following: var fib = [], a = 1, b = 1; for (var _ = 0; _ < 50; _++...

 
10:07 PM
@Maltysen oh, now that I know of JSfuck my question is very similar to another one
15
Q: JSFuck Golf - Hello World

Joe Z.JSFuck is an esoteric language in which any Javascript statement can be accurately reproduced into another valid Javascript program that uses only the 6 characters []()!+. The JSFuck converter, when given an input of alert("Hello World!"), produces a block of code that is 22,948 characters long....

I didn't know of the term 'JSfuck', so that question was really hard to find
 
At least yours isn't Hello World @orlp
 
10:25 PM
I just accidentally crashed the java compiler :/
 
I just finished the interpreter (which is in the same repo), but large parts are still untested, and there is no documentation at all (yet).
 
There should be a nicer version of Brainfuck called "Consentual Brain Intercourse."
@MartinBรผttner ๐Ÿ‘ ๐Ÿ‘ ๐Ÿ‘ ๐Ÿ‘ ๐Ÿ‘
 
10:41 PM
14 hours to go for grc's :(
 
@Sp3000 You got Peter's, which is super cool. Nice work. :)
 
@Sp3000 did you crack both Enema and Mascarpone with your script?
 
Mascarpone I managed to add to the list. Enema I had to do manually though
 
ah okay... just thought it was funny you cracked those two, because they were both linked from the Emmental page you sent me the other day
 
10 hours ago, by Sp3000
I actually did finish going through all of my list. But then there was a submission that made me think of Emmental, realised that wasn't it, then saw Mascarpone linked...
^^ basically
 
10:44 PM
ah right :D
 
0
Q: Can I make that shape with blocks, slabs, and stairs?

Calvin's HobbiesConsider a rectangular two-dimensional grid where each cell can either be empty (.) or full (0). e.g. ..00.... 0000.... .00000.. 000...00 ..000000 000.00.. The grid is considered infinite, all cells outside the depicted region are empty. The goal is to cover the filled spaces and leave the e...

 

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